diff --git a/run b/run
index 6a69628..eccca6a 100755
--- a/run
+++ b/run
@@ -1078,7 +1078,7 @@ addMode('int-utils', 'small commands like run community server, backup, or simul
         'local' => o('serverURL', 'http://localhost:8410'),
         'remote' => o('serverURL', 'http://jonsson.stanford.edu:8410')
       }),
-      o('logToFile', 0), # set to anything else to log stuff
+      o('sandbox', 1), # set to 0 to enable logging
     nil),
   }),
 nil) })
diff --git a/shrdlurn/README.md b/shrdlurn/README.md
index 669977c..60b9c7e 100644
--- a/shrdlurn/README.md
+++ b/shrdlurn/README.md
@@ -1,4 +1,12 @@
-
+Experimental work following
+1) ./shrdlurn/runServer.sh to start both servers
+2) Blast the server with simulator on previous logs, under sandbox mode, to get the server into state
+3) Collect and append to more logs
+4) For any particular experiment, save the previous log
+	- ./run @mode=int-utils @cmd=backup-mv
+  - reset the log
+potentially reset citation and grammar information as well?
+5) blast server with non-sandbox call to get previous citations
 
 Default port: 8410 for sempre, 8406 for user
 Run: ./run @mode=interactive -Server.port 8410
diff --git a/src/edu/stanford/nlp/sempre/JsonServer.java b/src/edu/stanford/nlp/sempre/JsonServer.java
index fd84152..059fa5c 100644
--- a/src/edu/stanford/nlp/sempre/JsonServer.java
+++ b/src/edu/stanford/nlp/sempre/JsonServer.java
@@ -195,9 +195,9 @@ public class JsonServer {
     
     void handleQuery(String sessionId) throws IOException {
       String query = reqParams.get("q");
-      boolean logToFile = true; // false when simulating
-      if (reqParams.containsKey("logtofile") && reqParams.get("logtofile").equals("0"))
-        logToFile = false;
+      boolean sandbox = false; // false when simulating
+      if (reqParams.containsKey("sandbox") && !reqParams.get("sandbox").equals("0"))
+        sandbox = true;
       
       String queryTime = LocalDateTime.now().toString();
       { // write the query log
@@ -208,9 +208,11 @@ public class JsonServer {
         // jsonMap.putAll(reqParams);
         jsonMap.put("remote", remoteHost); 
         
-        boolean isContext = query.startsWith("(:context ");
+        
+        
         synchronized (queryLogLock)  {
-          if (logToFile &&  (!isContext || opts.verbose >= 2)) {
+          boolean isContext = query.startsWith("(:context ");
+          if (!sandbox && (!isContext || opts.verbose >= 2)) {
             PrintWriter out = IOUtils.openOutAppend(opts.queryLogPath);
             out.println(Json.writeValueAsStringHard(jsonMap));
             out.close();
@@ -225,7 +227,7 @@ public class JsonServer {
       session.remoteHost = remoteHost;
       session.format = "json";
       // 
-      session.logToFile = logToFile;
+      session.logToFile = sandbox;
 
       if (query == null) query = session.getLastQuery();
       if (query == null) query = "";
@@ -258,7 +260,7 @@ public class JsonServer {
         jsonMap.put("q", query); // backwards compatability...
         jsonMap.put("lines", responseMap.get("lines"));
         synchronized (responseLogLock) {
-          if (logToFile) {
+          if (!sandbox) {
             {
               PrintWriter out = IOUtils.openOutAppend(opts.responseLogPath);
               out.println(Json.writeValueAsStringHard(jsonMap));
diff --git a/src/edu/stanford/nlp/sempre/Master.java b/src/edu/stanford/nlp/sempre/Master.java
index 73e9a8e..97c0ac4 100644
--- a/src/edu/stanford/nlp/sempre/Master.java
+++ b/src/edu/stanford/nlp/sempre/Master.java
@@ -484,7 +484,7 @@ public class Master {
       if (match != null) {
         LogInfo.logs("Matched: %s", match);
         
-        if (session.logToFile) {
+        if (!session.sandbox) {
           CitationTracker tracker = new CitationTracker(session.id, ex);
           tracker.citeAll(match);
         }
@@ -512,7 +512,7 @@ public class Master {
           response.ex = refExHead.value;
           
           // write out the grammar
-          if (session.logToFile) {
+          if (!session.sandbox) {
             PrintWriter out = IOUtils.openOutAppendHard(Paths.get(Master.opts.newGrammarPath, session.id + ".grammar").toString());
             for (Rule rule : inducedRules) {
               out.println(rule.toLispTree().toStringWrap());
diff --git a/src/edu/stanford/nlp/sempre/Session.java b/src/edu/stanford/nlp/sempre/Session.java
index 936df9f..79645a2 100644
--- a/src/edu/stanford/nlp/sempre/Session.java
+++ b/src/edu/stanford/nlp/sempre/Session.java
@@ -29,7 +29,7 @@ public class Session {
   Example lastEx;  // Last example that we processed
   Params params;
   Learner learner;
-  boolean logToFile = true;
+  boolean sandbox = false;
   
   public static Options opts = new Options();